Abstract : A sediment impact assessment was conducted for the Pecos River and three tributaries in Carlsbad, NM, as part of a reconnaissance level planning study. The purpose of the study was to identify the magnitude of sediment problems that might be associated with proposed flood-control projects, and to recommend appropriate sediment studies for the next level of planning study. The study employs the sediment budget approach to assess channel stability in the study reach. Total sediment yield estimates were made for preliminary sizing of debris basins and/or reservoirs. Channel stability, in terms of aggradation and degradation potential, was assessed. Recommendations for more detailed sediment studies were made. (MM)